This article presents a metal cavity-backed antenna array with high gain and high radiation efficiency. The proposed antenna can be used for the purpose of thermal management. A 28 GHz linear polarized antenna is implemented on a low cost substrate with an aluminum structure that functions as a heat sink. Each antenna element is connected to integrated circuits with a stripline embedded in the printed circuit board. Each element is fed by a slot-coupled feeding structure and radiated through twin arc slots fabricated in circular metal cavity. The simulated antenna efficiency is over 80% including feeding structures. The simulated and measured radiation patterns show 17.2 dBi of peak gain. From the thermal simulation, temperature reduction can be expected.

中文翻译：

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用于高效和热管理的 28 GHz 金属背腔双弧缝隙天线

本文介绍了一种具有高增益和高辐射效率的金属背腔天线阵列。建议的天线可用于热管理。28 GHz 线性极化天线在低成本基板上实现，其铝结构用作散热器。每个天线元件通过嵌入印刷电路板的带状线连接到集成电路。每个元件由槽耦合馈电结构馈电，并通过在圆形金属腔中制造的双弧槽辐射。模拟天线效率超过 80%，包括馈电结构。模拟和测量的辐射图显示峰值增益为 17.2 dBi。根据热模拟，可以预期温度会降低。